The Launch Authorisation Board (LAB) for PSLV-C17/GSAT-12 mission, which
met on July 12, 2011 at Satish Dhawan Space Centre - SHAR, Sriharikota has
cleared the launch of PSLV-C17 at 16:48 hrs (IST) on Friday, July 15,
The 53 hour countdown commenced at 11:48 hours on July 13, 2011. During
the Countdown, propellant-filling operations of the liquid propellant
second stage (PS2) and fourth stage (PS4) of the launch vehicle will be
carried out. Mandatory checks on the launch vehicle and spacecraft
including charging of batteries and pressurisation of propellant tanks
will be performed. Readiness of various ground systems such as tracking
radar systems and communication networks will also be checked.
PSLV-C17 will launch GSAT-12 satellite into a sub-Geosynchronous Transfer
Orbit of 284 km perigee and an apogee of 21,000 km. GSAT-12 communication
satellite weighing 1410 kg with 12 Ext-C Band transponders will augment
the communication services in the country.